* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font: 14px/1.5 Helvetica Neue, Helvetica, Arial, Microsoft Yahei, Hiragino Sans GB, Heiti SC, WenQuanYi Micro Hei, sans-serif;
  color: #333;
  background-color: #f3f5f7;
}

li {
  list-style: none;
}

.clearfix::before,
.clearfix::after {
  content: "";
  display: table;
}

.clearfix::after {
  clear: both;
}

a,
ins,
u {
  text-decoration: none;
  color: #333;
}

strong,
b {
  font-weight: normal;
}

em,
i {
  font-style: normal;
}

input {
  /* 背景透明 */
  background-color: transparent;
  /* 去掉焦点框 */
  outline: none;
  border: 0;
}

button {
  border: 0;
  background-color: transparent;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 400;
}